Radio frequency transmitter



FIG. 1 is a front, top, right isometric view of the radio frequency transmitter;

FIG. 2 is a left view thereof;

FIG. 3 is a right view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a back view thereof; and,

FIG. 7 is a front view thereof.

The broken lines in the drawings are for illustrative purposes only and form no part of the claimed design. 

We claim the ornamental design for a radio frequency transmitter, as shown. 